:Product: Weekly Highlights and Forecasts
:Issued: 2017 Feb 27 0113 UTC
#
Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
#
Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/weekly.html
#
#
Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic
Activity 20 - 26 February 2017
Solar activity was at very low levels on
20-21 and 25-26 Feb with
low levels observed on 22-24 Feb. Region 2638 (N19,
L=111,
class/area Dso/150 on 22 Feb) produced three C-class flares,
one
each on 22-24 Feb. The largest of these was a C4/1f flare observed
on
22/1327 UTC. Several weak CMEs were observed during the period,
but none of
them had an Earth-directed component.
No proton events were observed at
geosynchronous orbit.
The greater than 2 MeV electron flux at
geosynchronous orbit was at
moderate levels on 20, 22-24 and 26 Feb. High
levels were observed
on 21 and 25 Feb.
Geomagnetic field activity was
at predominately quiet to active
levels with an isolated minor storm
(G1-Minor) interval early on 24
Feb. Quiet to unsettled levels were observed
on 20-21 and 25-26 Feb
under a nominal solar wind regime. Quiet to isolated
G1 levels were
observed on 22-24 Feb under the influence of a positive
polarity CH
HSS. Solar wind speeds reached a peak of 671 km/s at 24/0516
UTC.
Total field (Bt) reached a peak of near 12 nT late on 23 Feb
while
the Bz component reached a maximum southward extent of -10 nT,
again
late on 23 Feb. Phi angle was in a predominately positive
solar
sector throughout the summary period.
FORECAST OF SOLAR AND
GEOMAGNETIC ACTIVITY 27 FEBRUARY - 25 MARCH 2017
Solar activity is
expected to be at very low levels with a chance
for isolated C-class activity
during the outlook period.
No proton events are expected at
geosynchronous orbit.
The greater than 2 MeV electron flux at
geosynchronous orbit is
expected to be at high levels on 27 Feb, 01-13, 19-20
and 24-25 Mar.
Normal to moderate levels are expected on 28 Feb, 14-18 and
21-23
Mar.
Geomagnetic field activity is likely to be reach G1
(Minor)
geomagnetic storm levels on 01-02 and 16 Mar due to recurrent CH
HSS
influence. Unsettled to active geomagnetic field activity is
expected
on 28 Feb, 03-04, 15, 17-19 and 21-24 Mar due to CH HSS
influence. Mostly
quiet conditions are expected for the remainder of
the period under a nominal
solar wind regime.
:Product: 27-day Space Weather Outlook Table
27DO.txt
:Issued: 2017 Feb 27 0113 UTC
# Prepared by the US Dept. of
Commerce, NOAA, Space Weather Prediction Center
# Product description and
SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
#
27-day Space Weather Outlook Table
# Issued
2017-02-27
#
# UTC Radio Flux Planetary Largest
#
Date 10.7 cm A Index Kp Index
2017 Feb 27 79
5 2
2017 Feb 28 77 12 4
2017 Mar 01
77 25 5
2017 Mar 02 79 20 5
2017
Mar 03 79 15 4
2017 Mar 04 79
8 3
2017 Mar 05 75 5 2
2017 Mar 06
72 5 2
2017 Mar 07 72 5 2
2017
Mar 08 73 5 2
2017 Mar 09 74
5 2
2017 Mar 10 75 5 2
2017 Mar 11
75 5 2
2017 Mar 12 75 5 2
2017
Mar 13 75 5 2
2017 Mar 14 75
5 2
2017 Mar 15 74 10 3
2017 Mar 16
75 20 5
2017 Mar 17 77 15 4
2017
Mar 18 79 10 3
2017 Mar 19 80
8 3
2017 Mar 20 82 5 2
2017 Mar 21
82 8 3
2017 Mar 22 82 10 3
2017
Mar 23 82 15 4
2017 Mar 24 80
8 3
2017 Mar 25 80 5 2
(SWPC via
DXLD)
